US Celestron SKYMASTER25X100 20X80 15X70 8X56 9X63 high-powered night ..

Main features Celestron SkyMaster series of large-caliber binoculars are binoculars with exceptional performance. It is an ideal tool for astronomical observations and land use. SkyMaster series uses high quality BAK-4 prisms and multi-coated to enhance contrast. Celestron has also developed a greater SkyMaster models to meet the special needs of many astronomical and terrestrial observations. In order to achieve maximum stability and accuracy compared with optical, 80mm and 100mm caliber SkyMaster also equipped with a mirror body structural reinforcement member. To give you more convenience, 80mm and 100mm caliber models also include a built-in super-stable camera tripod mount. SkyMaster series binoculars can provide you with an appreciation of the world and the wonderful sight of the sky window. 8x56 and 9x63 type waterproof design, and with a shockproof rubber cover and can flip the eye cup. They also use a high quality BAK-4 prisms and multi-coated full coverage. Their long depth of field without the need to re-focus can provide unique experiences for your observations. DETAILED SKYMASTER family features waterproof design (56mm, 63mm, 80mm and 100mm) water-resistant design (70mm) multi-coated high quality BAK-4 prisms for large diameter objective lens in low light conditions and stargazing metal tripod built-in adapter (80mm and 100mm) long eye relief distance design for observer refractive glasses designed for precise focus adjustment (100mm focusing system is independent) parameters of the optical system: Paul mirror diameter: 100mm Magnification: 25X viewing angle: 3 ° Linear Field of View (1000m): 47.88m exit pupil diameter: 4mm exit pupil distance: 15mm Close Focus Distance: 24.38m Prism Material: BAK-4 Optical Coating: Multi-coated Waterproof: Waterproof carrying case: Nylon Tripod Mount: Yes Weight: 3698.93g IPD (mm): 56-72 parameters of the optical system: Paul mirror diameter: 80mm Magnification: 20X viewing angle: 3.7 ° Linear Field of View (1000m): 51.08m exit pupil diameter: 4mm exit pupil distance: 18mm close Focus Distance: 32.92m Prism Material: BAK-4 Optical Coating: Multi-coated Waterproof: water resistant carrying case: nylon tripod socket: Yes Weight: 2126.21g IPD (mm): 56-72 parameters of the optical system: Paul mirror caliber : 70mm Magnification: 15X viewing angle: 4.4 ° Linear Field of View (1000m): 70.23m Exit Pupil Diameter: 4.7mm Exit pupil distance: 18mm Close Focus Distance: 13.17m Prism Material: BAK-4 Optical Coating: Multi-coated waterproof : water-resistant carrying case: nylon tripod socket: Yes Weight: 1360.78g IPD (mm): 56-72 parameters of the optical system: Paul mirror diameter: 56mm Magnification: 9x viewing angle: 5.8 ° Linear Field of View (1000m): 92.57m Exit Pupil Diameter: 7mm exit pupil distance: 18mm Close Focus Distance: 7.62m Prism Material: BAK-4 Optical Coating: Full cover layer coating Waterproof: Waterproof carrying case: nylon tripod socket: Yes Weight: 1077.28g IPD (mm) : 58-72 parameters of the optical system: Paul mirror diameter: 63mm Magnification: 9x viewing angle: 5 ° Linear Field of View (1000m): 78.81m exit pupil diameter: 7mm exit pupil distance: 17mm Close Focus Distance: 10.67m Prism Material: BAK -4 Optical Coating: Full cover layer coating Waterproof: Waterproof carrying case: nylon tripod socket: Yes Weight: 1247.39g IPD (mm): 58-72 detailing SKYMASTER family features waterproof design (56mm, 63mm, 80mm and 100mm) water resistant design (70mm) multi-coated high quality BAK-4 prisms for large diameter objective lens in low light conditions and stargazing metal tripod built-in adapter (80mm and 100mm) long eye relief distance design, suitable for wearing glasses observation by refractive conditioning design for precise focusing (100mm focusing system is independent) parameters of the optical system: Paul mirror diameter: 63mm Magnification: 9x viewing angle: 5 ° Linear Field of View (1000m): 78.81m exit pupil diameter: 7mm out pupil distance: 17mm Close Focus Distance: 10.67m Prism Material: BAK-4 Optical Coating: Full cover layer coating Waterproof: Waterproof carrying case: nylon tripod socket: Yes Weight: 1247.39g IPD (mm): 58-72